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X 40 CrNi 25-21

Germany DIN X40CrNi25-21 Heat-resisting CrNi steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: X40CrNi25-21 / X 40 CrNi 25-21
Category Grade Standard Region/Area Standard Content
Metals X 40 CrNi 25-21 -- Germany Heat-resisting CrNi steel

Chemical composition(mass fraction)(wt.%) of the X 40 CrNi 25-21

Element Min Max Similar
Si 0.5000 1.5000 -
S - 0.0200 -
P - 0.0250 -
Ni 20.0000 23.0000 -
Mn 1.5000 2.5000 -
Cr 24.0000 26.0000 -
C 0.3500 0.4500 -

Mechanical Properties of steel grade X 40 CrNi 25-21

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
383 (≥) 159 (≥) 43 22 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade X 40 CrNi 25-21

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
42 - -     0.11 -  
163 483 - 14.3 123   -  
247 - 12 32.2   411 431

Heat Treatment of steel grade X 40 CrNi 25-21

Heat treated : 1973°C - 1661°C

Technological Curves of steel grade X 40 CrNi 25-21

Cross Reference Table (Equivalent Grade) of X 40 CrNi 25-21

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